Improvement in the manufacture of vulcanized india-bubbeb balls



HJLALDEN. I MANUFACTURE OF VULGANIZED INDIA RUBBER BALLS.

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HENRY A. ALDEN, OFMATTEAWAN, NEW YORK, ASSIGNOR TO THE NEW YORK RUBBER COMPANY,--OF NEW YORK-CITY Lent" Ram M5. 79,535, dated July 1, 1868,.

IHPROVEMENT IN THE MANUFACTURE OF VULOANIZED INDIA-RUBBER BALLS.

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WHOM IT MAY :OONGERN: Be it known that I, HENRY A. ALDEN, of Matteuwan, in the county of Dutehess, an-d'Stute of New Yorlr, have invented certain new and useful Iihprovements iu .the Manufucture of-Vulchnized Indie-Rubber Balls; and I hereby'declure thefollowing to bee full, clear, and exact description of the shine, reference being had to the. 'accompunying drawings. I l t l v yiuventien relates to the mtnufacture of hollow vulcanized Indie-rubber bulls, and other articles requiring to be distended by influtiomnnd it has reference more particularly to the construction end method of form'- ing the vulva through. which uir is introduced into or discharged from such articles.

The'process of'manufneturing the bull itself is too well known to' thoso skilled in the art to which this inrentionpertain's'to need-description, and -I shall, therefore, confine attention to the method of forming the Before putting together the parts or sections of.the bo.ll'or other hollow article, a shot-is embedded in one of the quarters or sections, it being pressed into the nicterial from the inside, and so as not to penetrate to or break through the outer surface. A sm nll piece of rubber, prepared for vulcrmlz'ing, is then applied to the inside surface of this quarter of the ball, and so as to cover the shot, as shown in Figure 1, which is a sectionul -vie\v"of ulvulcanined and finished ball made in accordance with my invention. The recess or chamber a in the ball is formed by the embedded shot, and the port 6 represents the piece-of rubber which is placed upon the interior surface of the ball, over the shot and forms the v'ulye.

Owing to the elasticity of the'inateriul of which the valve-piece 6 is formed, the lips of theislit al ure pressed tightly together, so as to render the ball practically air-tight. When, therefore, it is desired either to inflate the ball, or to discharge the air front it, a. small tube of any kind, such as a. quill, pipe-stem, or metal tube of suitable size, should be t-lirust'down through the chamber 1: until its end pesses between and opens the lips of the'vulve cl. Air can now be readily blown into or forced out from the bull, and, upon removing the tube, the

velve'will at once close, and shut off all further communication with the interior of the ball.

i It mayhnppcn that, when the ball is in use, the chamber a, if left open, us seen in fig.- 1, will become filled with dirt. In order'to relncdy this diiliculty, and, at the same time, to prevent possibility of the leaking of the valve, a. shot, e, somewhat lurger'thun the chamber, a, formed by the first shet,fn1ny be inserted in the chamber, as rcpr es'cnted in Figure 2, thus effectually closing the valve, and prevcntin the cntrnnce ol'd'irt. Instead of described. v I I 2. A vulcanized Indie-rubber bull, or other like hollow article, the aperture or opening in which, for the 2 of air, is closed by-a.n elespi'o v'alve-pieee, provided with u. slit ol 'valve-opening, d, and applied to the he ball, substantially as hereineeb forth.

3. The employment, in c onnedtion with the chamber or op piece, for closing said chamber, 05 a shot, or ifss equivalent, inserte tightly, and prevent the entrance of dirt, as set forth. hereof, I have signed iny name to this specification b In testimony w passage and the elastic valveinterior surface of t ening formed in the ball,

(1' in said chamber, 5

efore two subscribing witnesses.

HENRY A. ALDEN.

Witnesses:

B. A. PIPER, M. HILLYER.

o a; to close the valvev 

